cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A115197 Convolution of generalized Catalan numbers A064062 (called C(n;2)).

Table of values

n a(n)
0 1
1 2
2 7
3 32
4 169
5 974
6 5947
7 37820
8 247885
9 1662890
10 11362399
11 78806936
12 553386097
13 3926523782
14 28108587139
15 202764451700
16 1472446595221
17 10755543924578
18 78973277044903
19 582558618222416
20 4315238786662585

List of values

[1, 2, 7, 32, 169, 974, 5947, 37820, 247885, 1662890, 11362399, 78806936, 553386097, 3926523782, 28108587139, 202764451700, 1472446595221, 10755543924578, 78973277044903, 582558618222416, 4315238786662585]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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